kernel/include/media/lirc_dev.h, branch linux-4.15.y

media: lirc_dev: remove min_timeout and max_timeout

2017-10-11T16:37:36Z

There are no users of this functionality (ir-lirc-codec.c has its own implementation and lirc_zilog.c doesn't use it) so remove it. This only affects users of the lirc kapi, not rc-core drivers. Signed-off-by: David Härdeman Signed-off-by: Sean Young Signed-off-by: Mauro Carvalho Chehab

[media] media: lirc_dev: merge struct irctl into struct lirc_dev

2017-10-04T17:53:07Z

The use of two separate structs (lirc_dev aka lirc_driver and irctl) makes it much harder to follow the proper lifetime of the various structs and necessitates hacks such as keeping a copy of struct lirc_dev inside struct irctl. Merging the two structs means that lirc_dev can properly manage the lifetime of the resulting struct and simplifies the code at the same time. [mchehab@s-opensource.com: fix merge conflict] Signed-off-by: David Härdeman Signed-off-by: Sean Young Signed-off-by: Mauro Carvalho Chehab

[media] media: lirc_dev: introduce lirc_allocate_device and lirc_free_device

2017-10-04T17:19:17Z

Introduce two new functions so that the API for lirc_dev matches that of the rc-core and input subsystems. This means that lirc_dev structs are managed using the usual four functions: lirc_allocate_device lirc_free_device lirc_register_device lirc_unregister_device The functions are pretty simplistic at this point, later patches will put more flesh on the bones of both. Signed-off-by: David Härdeman Signed-off-by: Sean Young

[media] media: rename struct lirc_driver to struct lirc_dev

2017-10-04T17:13:08Z

This is in preparation for the later patches which do away with struct irctl entirely. Signed-off-by: David Härdeman Signed-off-by: Sean Young Signed-off-by: Mauro Carvalho Chehab

[media] media: lirc_dev: use an IDA instead of an array to keep track of registered devices

2017-10-04T17:03:21Z

Using the kernel-provided IDA simplifies the code and makes it possible to remove the lirc_dev_lock mutex. Signed-off-by: David Härdeman Signed-off-by: Sean Young Signed-off-by: Mauro Carvalho Chehab

[media] media: lirc_dev: make chunk_size and buffer_size mandatory

2017-10-04T16:53:32Z

Make setting chunk_size and buffer_size mandatory for drivers which expect lirc_dev to allocate the lirc_buffer (i.e. ir-lirc-codec) and don't set them in lirc-zilog (which creates its own buffer). Also remove an unnecessary copy of chunk_size in struct irctl (the same information is already available from struct lirc_buffer). Signed-off-by: David Härdeman Signed-off-by: Sean Young Signed-off-by: Mauro Carvalho Chehab

[media] media: lirc_dev: make better use of file->private_data

2017-10-04T16:52:12Z

By making better use of file->private_data in lirc_dev we can avoid digging around in the irctls[] array, thereby simplifying the code. External drivers need to use lirc_get_pdata() instead of mucking around in file->private_data. The newly introduced lirc_init_pdata() function isn't very elegant, but it's a stopgap measure which can be removed once lirc_zilog is converted to rc-core. Signed-off-by: David Härdeman Signed-off-by: Sean Young Signed-off-by: Mauro Carvalho Chehab

[media] media: lirc_dev: remove support for manually specifying minor number

2017-10-04T16:50:42Z

All users of lirc_register_driver() uses dynamic minor allocation, therefore we can remove the ability to explicitly request a given number. This changes the function prototype of lirc_unregister_driver() to also take a struct lirc_driver pointer as the sole argument. Signed-off-by: David Härdeman Signed-off-by: Sean Young Signed-off-by: Mauro Carvalho Chehab

[media] lirc_dev: cleanup header

2017-06-06T12:07:26Z

Remove some stuff from lirc_dev.h which is not used anywhere. Signed-off-by: David Härdeman Signed-off-by: Sean Young Signed-off-by: Mauro Carvalho Chehab

[media] lirc_dev: make fops mandatory

2017-06-06T12:02:20Z

Every caller of lirc_register_driver() passes their own fops and there are no users of lirc_dev_fop_write() in the kernel tree. Thus we can make fops mandatory and remove lirc_dev_fop_write(). Signed-off-by: David Härdeman Signed-off-by: Sean Young Signed-off-by: Mauro Carvalho Chehab